An image processing method and apparatus

An image processing device and an image processing technology, which are applied in the field of image processing, can solve the problems of image quality deterioration in pseudo-flat parts and reduce image quality, and achieve the effect of avoiding image quality deterioration and ensuring image quality.

Active Publication Date: 2019-03-05
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0004] In order to solve the problem that the image quality of the pseudo-flat part is degraded and the image quality is reduced when p

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  • An image processing method and apparatus
  • An image processing method and apparatus
  • An image processing method and apparatus

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[0051] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0052] figure 1 is a flow chart of an image processing method provided by an embodiment of the present invention, see figure 1 , the image processing method includes:

[0053] Step 101: Generate an original grayscale image of the original image.

[0054] In the embodiment of the present invention, generating the original grayscale image of the original image may include: acquiring the original image; and processing the original image to obtain the original grayscale image.

[0055] Wherein, processing the original image includes but is not limited to converting the original image into a format such as YUV to generate an original grayscale image. Specifically, Y in YUV represents brightness, and U and V represent chroma, so if there ...

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Abstract

The invention discloses an image processing method and device, belonging to the technical field of image processing. The method comprises the following steps of generating an original gray scale imageof an original image; equalizing the original gray image by histogram equalization, and obtaining the equalized gray image; generating a decision factor distribution map according to the original gray scale image, wherein the decision factor distribution map comprising a first marker region and a second marker region, and the first marker region comprises an area in which pixels in the original image whose pixel positions are adjacent and standard deviation is less than a set value are located; in accordance with that original grayscale image, the equalization gray level map and the decisionfactor distribution map, obtaining a final gray scale image, wherein the gray scale value of pixels corresponding to the second mark area in the final gray scale image is the gray scale value of pixels corresponding to the equalized gray scale image, and the gray scale value of pixels corresponding to the first mark area in the final gray scale image is the gray scale value of pixels correspondingto the original gray scale image; restoring the processed image according to the final gray image.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method and device. Background technique [0002] Histogram equalization is an image processing method that changes the grayscale histogram of the original image from a relatively concentrated grayscale interval to a uniform distribution in the entire grayscale range. By performing histogram equalization on the image, the image can be enhanced. contrast to make the image clearer. [0003] For video images, due to the compression of video images during processing and transmission, many scenes such as the sky are compressed into a blocky pseudo-flat state, and the pseudo-flat part of the image (that is, the area where the pseudo-flat state exists ) appears to be the same gray scale, but actually consists of similar gray scale blocks. For such an image with blocky pseudo-flat state, when the histogram equalization is performed, the gap between t...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/008G06T5/40G06T5/007G06T2207/20076G06T2207/10024G06T5/001G06T5/20G06T5/50G06T2207/20021G06T2207/20024
Inventor 郭俊邵喜斌周呈祺陈明栗首王洁琼
Owner BOE TECH GRP CO LTD
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